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Table 4 Carbon contents of the kish graphite after purification with HCl by using ultrasonication

From: Recovery and purification of kish graphite from steelmaking dust by using acid leaching with physical auxiliary methods

Amplitude

(%)

Reaction time

(min)

Input energy

(kJ)

Temperature

(°C)

Carbon content (wt%)

25

5

8.7

55

91.20

50

5

14.9

69

92.78

75

0.5

2.2

32

89.71

1

4.3

39

91.73

2

8.4

53

93.86

5

18.6

67

93.95

30

63.3

78

94.53

  1. The HCl concentration was 1.0 N, and the L/S ratio was 10 L kg−1
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Sustainable Environment Research

ISSN: 2468-2039

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